Catalyst carrier kye kimu ku bintu ebikulu ebitali bya bulijjo mu makolero g’eddagala ag’omulembe era kikozesebwa nnyo mu nnimiro nga okulongoosa amafuta g’amafuta, okukola eddagala, okukuuma obutonde bw’ensi n’enfuga. Omulimu gwayo omukulu kwe kuwa ensengekera y’okuwagira ebirungo ebikola (active catalysts) ate nga tulongoosa obulungi n’obutebenkevu bw’ensengekera z’obutafaali (catalytic reactions). Okutegeera enkola y’emirimu gy’abasitula eddagala eriyitibwa catalyst kijja kuyamba okusobola okutegeera obulungi omugaso gwabwe mu kukola ebintu mu makolero.
Omulimu omukulu ogw’ebintu ebisitula ebirungo ebiziyiza (catalyst carriers) kwe kusaasaanya n’okutebenkeza ebirungo ebikola (active catalysts) bisobole okukuuma omulimu ogw’amaanyi mu kiseera ky’ensengekera. Abasitula batera okuba n’ekitundu eky’okungulu ekigere n’ekisenge ekirimu obutuli, ekiyinza okuwa ekitundu ekinene eky’okukwatagana kw’ebitundu ebikola, bwe kityo ne kitereeza obulungi bw’ensengekera z’okutabula. Okugeza, mu nkola y’enjatika z’amafuta, abasitula ekirungo ekiziyiza (catalyst carriers) basobola okusaasaanya ebyuma ebikola kyenkanyi, okukakasa nti molekyo ezikola (reactant molecules) zikwatagana mu bujjuvu ku ngulu w’ekirungo ekiziyiza, ne ziyanguwa omutindo gw’ensengekera.
Okugatta ku ekyo, abasitula ebirungo ebiziyiza okuzimba (catalyst carriers) nabo basobola okulongoosa obutebenkevu bw’ebbugumu n’amaanyi g’ebyuma (mechanical strength) ag’ebirungo ebiziyiza (catalysts). Wansi w’ebbugumu erya waggulu oba puleesa eya waggulu, ekitwala kisobola okuziyiza ebitundu ebikola okusinda oba okugwa, n’okugaziya obulamu bw’okuweereza kw’ekirungo ekiziyiza. Okugeza, mu byuma ebirongoosa omukka mu mmotoka, abasitula ebirungo ebiziyiza empewo beetaaga okugumira okukosebwa kw’empewo ey’ebbugumu eringi-nga bakuuma emirimu gy’ekirungo ekiziyiza okukakasa nti obucaafu bukyusibwa bulungi.
Ebintu ebisunsuddwamu ebisitula ebirungo ebiziyiza okuzimba (catalyst carriers) kikulu nnyo mu kukola kwabwe. Ebintu ebya bulijjo ebisitula mulimu alumina, silika, kaboni akola ne molekyu ebisengejja. Ebintu eby’omubiri n’eby’obutonde eby’ebintu eby’enjawulo bye bisalawo ebika by’ensengekera bye bisaanira. Okugeza, abasitula alumina batera okukozesebwa mu nkola ya hydrogenation ne desulfurization reactions mu petrochemicals olw’obutebenkevu bwabyo obw’ebbugumu obw’amaanyi n’amaanyi g’ebyuma; ate nga activated carbon carriers zikozesebwa nnyo mu kulongoosa omukka omubi mu kisaawe ky’okukuuma obutonde olw’obulungi bwazo obulungi obw’okusikiriza.
Nga tekinologiya w’amakolero akulaakulanye, enkola y’okukola dizayini n’okuteekateeka ebyuma ebisitula ebyuma (catalyst carriers) nabyo bibeera bituufu. Nga tutereeza obunene bw’obuziba, eby’obutonde eby’okungulu n’obutonde bw’ebyuma eby’omutwala, okulonda n’obulungi bw’ensengekera y’ekirungo ekiziyiza (catalytic reaction) bisobola okwongera okulongoosebwa. Mu biseera eby’omumaaso, abasitula ebirungo ebiziyiza okuzimba (catalyst carriers) bajja kukola kinene nnyo mu maanyi amapya, obutabeera na kaboni n’emirimu emirala, n’okutumbula enkulaakulana y’amakolero g’eddagala aga kiragala.
Ebitwala ebirungo ebiziyiza okukola (catalyst carriers) si "nkoona" yokka ey'ensengekera z'eddagala, wabula n'omusingo omukulu ogw'okuddukanya obulungi amakolero. Okutegeera ennyo enkola yaayo ey’okukola kijja kuyamba amakampuni okulongoosa enkola y’okufulumya, okutumbula okuvuganya kw’ebintu, n’okuyamba mu nkulaakulana ey’olubeerera.
